2820a0 pages
2820a
C, L & tan Measuring Bridge
FEATURES
Compact, reliable and EMC hardened design
The Graphical User Interface of the instrument is
highly intuitive, focussed on convenience with
built-in useful programs (e.g. support tool for
tuning the external high-voltage supply) and uses
a large colour touch screen as the input device.
Advanced, well-engineered test equipment,
optimised to the specific application
The instrument works on the principle of a
combined bridge-vector-meter and is capable of
analyzing capacitive and inductive loads with
high accuracy and stability.
Additional signal analysis capabilities like
Spectrum Analyser, Digital Scope and Data
Logger are integrated
The Dielectric-Loss Analyzing System 2820a
is designed for measurement of low dielectric
losses and impedances (Dissipation Factor and
Power Factor) of high-voltage apparatus (e.g. the
insulation of bushings).
Accuracy capacitance 0.1%, tan 1x10 -4
Integrated solution with built-in industrial
computer
BENEFITS
Easy to operate with Manual and Automated
test modes, Software assisted test preparation,
Execution and Trend analysis.
Complete Measuring System including power
supplies, standard capacitors, current
comparators, test cells, application support and
calibration from one supplier.
Wide Application Range. Losses of all types of
insulation including shunt reactors under
unstable power frequency can be measured.
Upgrade. Outdated Tettex bridge models (e.g.
2877, 2801, 2821, etc.) can be easily replaced,
with existing cable sets.
The operator can choose between manual or
automatic modes. While the manual mode
provides quick measurements, the automatic test
mode supports complete automated test
sequences.
Advanced software functionalities such as
insulation temperature correction, programmable
test sequences with pass/fail limits, graphical
visualisation of measured data, etc. make this
instrument a powerful tool for analysis of highvoltage equipment.
The built-in industrial computer with standard
interfaces (e.g. USB) enables easy exchange of
measurement results, related settings, etc. for
further analysis or reporting.
APPLICATIONS
PPLICATIONS
Power Transformers
Cables
Distribution Transformers
Capacitors
Instrument Transformers
Breakers
Liquid or Solid Insulations
Surge Arrestors
Rotating Machines
Bushings
Generators
others
a brand of
Haefely is a subsidiary
of Hubbell Incorporated.
Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.
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